Hi all I made i Led display digital voltmeter Here it is the design from smart kit,but i saw it have a small wrong, the pin 30 must to connect with pin 32 ICL
... That's pretty slick. Building a jig for measuring and testing zeners has been on my list. I was thinking of using one of the regulator ICs as a current
Just about any NPN darlington will work. For lower current bulbs, use a MPSW45 and for higher currents, use a darlington in a T0-220 package. You can also use